Try-square.



. UNITED STATES PATENT EEICE.

HENRY BOUNDS CARY, OFLOS ANGELES, CALIFORNIA.

TRY-SQUARE.

SPECIFICATION forming part of Letters Patent No. 715,550, dated December9, 1902.

Application led May 27, 1902. Serial No. 109,192. (No model.)

To all whom t may concern:

Be it known that I, HENRY BOUNDS CARY, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and.

State of California, have invented certain new and useful Improvementsin Try-Squares; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled' in the art to which it appertains to make and use thesame.

My invention relates to certain new and useful improvements intry-squares. It has for its object to produce a try-square atsubstantially small cost and which shall be effective and durable inuse.

With these ends in view my invention consists of a sheet-metal square,the blade and handle in one piece, the latter reinforced and toconstitute a straight-edge below the common plane of the blade andhandle bya strip of metal parallel with the handle portion and separatedtherefrom to a suitable extent, all as will be hereinafter more fullydescribed.

In order that those skilled in the art to which my invention appertainsmay know how to make the same and fully appreciate its advantages, Iwill proceed to describe my improvements, referring to the accompanyingdrawings, in which- Figure l is a perspective viewof a trysquare madeaccording to my invention. Fig. 2 is a section taken on` the line 2 2 ofFig. l. Fig. 3 is a perspectiveview of a modification, and Fig. 4 is asection taken on the line 4 4 of Fig. 2.

Similar letters of reference indicate like parts in the several figuresof the drawings.

A represents the blade, and B the handle portions, made of a singlepiece of metal, preferably sheet-steel. That portion of the metalconstituting the handle portion B is made of sufficient length to bebent at right angles, as shown at C, and returned in parallelism, asshown at D, the extreme end being bent also at right angles, as shown atE, Fig. 2, and in dotted lines in Fi g. l, and formed with one or moreprojections F, adapted to pass through corresponding openings in theblade A and riveted in position.

The thickness of the handle B is governed by the width of the angularportions C andl E in an obvious manner.

In the construction described the try-square is made, as will be readilyseen, of a single piece of sheet metal bent in such manner as to thickenand reinforce the handle while at the same time constituting astraight-edge or try-surface below the plane common to the handle andblade. The distance between the handle portion B and its reinforce D ispreferably such that the device may be sustained in an upright positionwhen Lnot in use, as clearly shown in Figs. l and 3.

Vhile I have shown at Figs. l and 2 my improved try-square made of asingle piece and may prefer to so make it, I desire it to be understoodthat the reinforce portion D4 may be made of a separate piece andsecured in proper and fixed relation with the portion B through themedium of interposed metal blocks G and rivets H, as clearly shown atFigs. 3 and et.

In either case, as shown in Figs. l or 3, the reinforce portion D is infixed parallelism with the handle B and constitutes astraightedge belowthe plane common to the blade A and handle B, while at the same timestrengthening and stiffening the handle.

, Having described the construction and advantages of my improvedconstruction, what I claim as new, and desire to secure by LettersPatent, is-

1. A try-square composed of a single L- shaped piece constituting ahandle portion B, and a blade A, the handle portion reinforced by astraight-edge D, secured in immovable parallelism with one side of thehandle portion and distant therefrom to form a space between the handleportion and said straightedge, substantially as and for the purposehereinbefore set forth.

2. A sheet-metal try-square composed of a single piece and consisting ofa blade portion A, and a handle portion B, the latter bent transverselyat right angles and returned longitudinally, and in parallelism with thehandle portion and secured thereto, substantially as set forth.

In testimony whereof 'I affix my signature in presence of two witnesses.

HENRY BOU-NDS CARY.

'Witnessesz ERNEST REDEIELD, EvARr M. ZANE.

